Find the Unknown Sides of the Right Triangle (See Illustration) $$b = 73.8 \mathrm {~cm} , \angle B = 15.0 ^ { \circ }$$

question 27

Multiple Choice

Find the unknown sides of the right triangle (see illustration) . Round your answer to the appropriate number of significant digits. $$b = 73.8 \mathrm {~cm} , \angle B = 15.0 ^ { \circ }$$

• A) a = 275 cm, c = 285 cm
• B) a = 68.2 cm, c = 100 cm
• C) a = 71.3 cm, c = 275 cm
• D) a = 19.8 cm, c = 76.4 cm
• E) a = 285 cm, c = 71.3 cm

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Definitions:

Net Energy Ratio

A measure comparing the amount of energy delivered by a system to the amount of energy used in its construction and maintenance.

Petrochemicals

Chemical products derived from petroleum or natural gas, serving as raw materials in various manufacturing processes.

Organic Chemicals

Compounds containing carbon atoms, typically produced by living organisms but can also be synthesized artificially.

Net Energy Ratio

The ratio of the amount of useful energy produced by an energy system to the amount of energy expended to produce it.